The sign at the garden gate reads: "These Plants Can Kill."

Colorful power station with a chimney equipped with a gallery for exhaust monitoring equipment.

A whimsical bridge adorned with decorative dragons.

A miniature train-ride through Slovenia's largest cave system.

This one-time health resort was used by aristocrats around the world.

This abandoned Slovenian military barracks has become a punky-political art squat.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

Hidden beneath the streets of London is a secret subway that only carried mail.

A quiet memorial to those who died saving others in the heart of the City of London.

Shiny Brutalist box commemorates a pioneer of electricity and houses a railway transformer.

A flourishing garden with pigs, donkeys, goats, rabbits, guinea pigs, chickens, ducks, and sheep.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

The world's largest collection of witchcraft regalia.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

Thousands of costumed dolls fill one of the world's creepiest museums.

A nuclear power plant abandoned along with an international allegience.

An intricate and amazing house built by architect Karl Junker.

Once the home of a hermetic monk, this cave now houses a small church.

Museum dedicated to the terror regimes of Hungary.

Spend your honeymoon where the Devil had his wedding.

Finnish lake, and scene of an infamous murder mystery.

In Egypt's expanding metro area, many of the neighbors are dead.

20-foot tall lamp mumbles Swedish to celebrate the holidays.

An unusual round church in London with a Templar past.